Quantitative Aptitude - Arithmetic Ability Questions

What number should be added to each of the numbers 55, 100, 65 and 116, so that the resulting numbers are in continued proportion?

If a = 3+23-2, b = 3-23+2 then a2+b2-ab ?

If (1 -­ cosA)/(1 + cosA) = x, then the value of x is

If 5x + 5 > 2 + 2x and 5x + 3 ≤ 4x + 5; then x can take which of the following values?

Select the odd word/letters/number/number pair from the given alternatives.

If (cotA - cosecA)2 = x, then the value of x is

The sum of the ages of husband and wife at present is 60. Four years ago the ratio of their ages was 7:6. What is the age of the husband?

A car travels a certain distance at 34 km/h and comes back at 66 km/h. What is the average speed for total journey?